EP 0701711 A1 19960320 - PROCESS AND CIRCUIT FOR OPERATING AN ELECTRIC CAR SEAT HEATER
Title (en)
PROCESS AND CIRCUIT FOR OPERATING AN ELECTRIC CAR SEAT HEATER
Title (de)
VERFAHREN UND SCHALTUNGSANORDNUNG ZUM BETRIEB EINER ELEKTRISCHEN AUTOSITZHEIZUNG
Title (fr)
PROCEDE ET CIRCUIT PERMETTANT DE FAIRE FONCTIONNER UN CHAUFFAGE ELECTRIQUE POUR SIEGES D'AUTOMOBILES
Publication
Application
Priority
- DE 4318432 A 19930603
- EP 9401601 W 19940518
Abstract (en)
[origin: WO9429780A1] In a process for operating an electric car seat heater, in which, in a first stage after switch-on the unheated car seat is heated at the maximum available or permissible heating power and, after a predeterminable heating time or on reaching a predeterminable temperature, the system is switched over to controlled operation, in order to optimise the heating-up process, after the predetermined heating time or temperature, the heating power is predetermined dependently upon a characteristic or table field stored in a non-volatile store of a microprocessor: for seats with different sizes, upholstery, surface condition, etc., the optimum heating power or time is empirically found in accordance with the desired seat temperature at the upper surface of the seat or back and stored in the non-volatile store; a curve or table from the characteristic or table field is selected by the microprocessor according to a code for the seat to be heated detected by the microprocessor; and the power is then supplied to the actual seat to be heated in accordance with the selected curve or table.
IPC 1-7
IPC 8 full level
B60H 1/22 (2006.01); B60H 1/00 (2006.01); B60N 2/56 (2006.01); G05D 23/19 (2006.01)
CPC (source: EP US)
B60H 1/00285 (2013.01 - EP US); B60N 2/5685 (2013.01 - EP US)
Citation (search report)
See references of WO 9429780A1
Designated contracting state (EPC)
DE ES FR GB SE
DOCDB simple family (publication)
DE 4318432 A1 19941208; CA 2163521 A1 19941222; CA 2163521 C 20000502; DE 59404483 D1 19971204; EP 0701711 A1 19960320; EP 0701711 B1 19971029; ES 2108458 T3 19971216; JP 3492370 B2 20040203; JP H10508809 A 19980902; US 5948297 A 19990907; WO 9429780 A1 19941222
DOCDB simple family (application)
DE 4318432 A 19930603; CA 2163521 A 19940518; DE 59404483 T 19940518; EP 9401601 W 19940518; EP 94916971 A 19940518; ES 94916971 T 19940518; JP 50123595 A 19940518; US 91723397 A 19970825